The Data Portal provides remote access to confidential data via a virtual desktop from a secure, approved location. The Data Portal provides a variety of common statistical programs, Microsoft Office, and other software. Completion of an application process and project approval are required for Data Portal access.
Data available through the Data Portal
DAWN 2004-2011 Emergency Department data
The Substance Abuse and Mental Health Services Administration (SAMHSA) conducted the Drug Abuse Warning Network (DAWN) emergency department (ED) component, a public health surveillance system that monitored drug-related ED visits from the early 1970s through 2011. The restricted use files include 2004 to 2011; 2004 was the first year of complete data following the DAWN redesign. A DAWN visit was any ED visit caused or contributed to by recent drug use. DAWN relied on a longitudinal probability sample of hospitals located throughout the United States. Only non-federal, short-stay, general surgical and medical hospitals located in the United States, with at least one 24-hour ED, were eligible for selection into the DAWN sample. In addition to providing national estimates, oversampling was done for about a dozen metropolitan statistical areas in order to support local estimates for those MSAs. DAWN is used to monitor trends in ED visits due to drug misuse and abuse, underage drinking, drug-related suicide attempts and adverse drug reactions, and to identify the emergence of new substances and drug combinations. DAWN data allow assessment of health hazards associated with drug use and estimation of the impact of drug misuse and abuse on the Nation's health care system. The datasets include demographics, up to 22 drugs involved in the ED visit, toxicology confirmation, route of administration, state type of case, verbatim diagnosis text (approximately 50% of cases include verbatim diagnosis text), and disposition of the patient following the visit.
Since 2011 SAMHSA has been partnering with the CDC's National Center for Health Statistics (NCHS) to continue the collection of emergency department data. NCHS is currently implementing a redesign of its hospital data collection systems, including its Emergency Department (ED) component. This new endeavor, called the National Hospital Care Survey, combines the National Hospital Ambulatory Medical Care Survey (NHAMCS) and the National Hospital Discharge Survey (NHDS) collected by NCHS as well as DAWN collected by SAMHSA. The advantages include an improved response rate with a large, nationally representative sample of hospital EDs, reduction in cost, expanded information that will be collected (e.g., health insurance coverage information, diagnoses, treatment, and ability to track ED patients who have been admitted into the hospital through the ED). In addition, this new survey will collect robust and comprehensive data on mental health-related ED visits. Under the redesign, SAMHSA will receive data on drug-related visits as well as mental health related visits. Information on clinical history, patient conditions, procedures done, health insurance coverage, and more detailed disposition and provider information will also be available. Currently, NCHS is working to recruit hospitals with publishable data expected in 2016. Under this new data collection effort, SAMHSA will publish drug- and mental health-related visit data as SAMHSA's Emergency Department Surveillance System or SEDSS.
The Drug Abuse Warning Network (DAWN) Drug-related Mortality component, conducted by the Substance Abuse and Mental Health Services Administration (SAMHSA), was a public health surveillance system that monitored drug-related deaths referred to and investigated by medical examiners and coroners (ME/Cs). DAWN mortality data were collected in participating ME/C offices through a retrospective review of case records for every death investigated by the ME/C. Families were never interviewed. The review of source records was performed by a trained DAWN reporter in each participating facility. The DAWN reporter submitted an electronic case report to the DAWN system for each death that met the specific case selection criteria. A DAWN case was any death that was determined by the ME/C as being related to drug use. The relationship between the death and the drug did not need to be causal; the drug only needs to be implicated in the death. The drug use may have been for legitimate, therapeutic purposes or for the purpose of drug abuse or misuse, but in either case, the drug use must have been recent. The DAWN Medical Examiner data collection did not rely on a statistical sample, but rather relied on participating Medical Examiner/Coroner offices. Although the data were never nationally representative, by its final year in 2010, DAWN collected data from metropolitan areas in 37 States (with complete coverage of 13 States) and covered one-third of the U.S. population. The datasets include demographics, up to 15 drugs involved/implicated in the death, toxicology confirmation, route of administration, variables about the location of death, cause of death, method(s) for determination of factors related to death, and verbatim cause of death summary text.
Data from the DAWN mortality component is only available for years 2003-2010; 2003 was the first year of mortality data following the DAWN redesign, and the system was discontinued following the 2010 data collection.
The National Survey on Drug Use and Health (NSDUH) is a primary source of statistical information on the use of illegal drugs, alcohol, and tobacco by the U.S. civilian, noninstitutionalized population aged 12 or older. The survey also collects data on mental disorders, co-occurring substance use and mental disorders, and treatment for substance use and mental health problems. The data can be used to identify correlates of these substance use and mental illness measures and provide estimates at the national, State, and substate level. The data can also be used to determine the prevalence of substance use or mental illness among demographic or geographic subgroups, as well as to estimate the trends in these measures over time, and to determine the need for substance abuse or mental health treatment services. Each year approximately 67,500 interviews are conducted with persons aged 12 and older. These data also include the NSDUH 'pair' data, i.e., data from two respondents from the same household. These pairs can come in many forms, such as father-child, grandmother-child, and spouse-spouse to name a few. There is a document specifically on the SAMHDA Data Portal page that provides information about which analyses are feasible using the pair data and how these data can be analyzed.
- The National Survey on Drug Use and Health (NSDUH), conducted by the Substance Abuse and Mental Health Services Administration (SAMHSA), is one of the primary sources of data for population-based prevalence estimates of substance use and mental health indicators in the United States. The NSDUH interview includes several self-administered indicators of mental health, such as assessments of lifetime and past year major depressive episode (MDE), past month and past year general psychological distress and associated functional impairment, as well as past year suicidality. Additionally, from 2008 to 2012, SAMHSA conducted the Mental Health Surveillance Study (MHSS), as a part of which clinicians administered semistructured diagnostic interviews to a subsample of approximately 5,500 NSDUH adult respondents to assess the presence of selected mental disorders. The purpose of this clinical data collection was to use the data to develop statistical models that would provide national and state estimates of serious mental illness (SMI). Even though the original intent of the 2008-2012 clinical study was to assist in the development of a model for the NSDUH to yield model-based estimates of SMI among adults, these data can also be used to generate a limited number of nationally representative prevalence estimates of past year mental disorders for the adult civilian, noninstitutionalized population. The clinical study includes disorders across a wide spectrum of diagnostic categories, including mood disorders, anxiety disorders, eating disorders, substance use disorders, intermittent explosive disorder, and adjustment disorder, as well as psychotic symptoms. Though the sample size limits the analytic capacity of this file (referred to as the NSDUH Adult Clinical data file), these clinical data are linked with NSDUH data. The data file contains weights and variance estimation variables. Annual estimates are not feasible due to the small sample size, but pooled estimates based on data from 2008 to 2012 are feasible.
- DAWN 2004-2011 Emergency Department data
- Data Portal Confidentiality Procedures Manual
- Instructions for Approved Applicants
- FAQs: Help with the Data Portal
- DAWN Variables Available through the Data Portal
- NSDUH Variables Available through the Data Portal
- Analysis Options for NSDUH Public-use and Restricted-use Data
- Analysis Options for DAWN Public-use and Restricted-use Data
- How to Prepare and Analyze Pair Data in NSDUH
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